This airticle is aboot the year 1668.

1668 (MDCLXVIII) wis a leap year stairtin on Sunday o the Gregorian calendar and a leap year stairtin on Wadensday o the Julian calendar, the 1668t year o the Common Era (CE) an Anno Domini (AD) designations, the 668t year o the 2nt millennium, the 68t year o the 17t century, an the 9t year o the 1660s decade. As o the stairt o 1668, the Gregorian calendar wis 10 days aheid o the Julian calendar, that remeened in localised use till 1923.

Millennium: 2nt millennium
Centuries: 16t century17t century18t century
Decades: 1630s  1640s  1650s  – 1660s –  1670s  1680s  1690s
Years: 1665 1666 166716681669 1670 1671